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  • INA303: The floating voltage on IN+ and IN_ Pin

    Answer Suggested
    Part Number: INA303 Tool/software: Hi team, In the below sch, let the IN+ and IN- floating (remove R76 and R80), there will be a 1.8V voltage to GND be measured by multimeter on these 2 Pins, that is, measured on the left side of R76 and the left side…

  • INA303-Q1: delay function

    TI Thinks Resolved
    Part Number: INA303-Q1 Tool/software: Hi Expert, Regarding to the delay function of second comparator, I don't quite follow how delay work. For example, the delay time is set to 2ms, Vlimit2 is about 3.5V. If there have a 4V/1.5ms voltage pulse on…
    • Answered

  • RE: INA303: Upper limit exceeds typical Hysteresis

    Resolved
    Hi, We changed RLIMIT2 to 3K and noted the hysterisis. It's matching with the typical hysterisis values. Thank you for your support.
    • Answered

  • INA303: INA303--Common-mode voltage is a bit small，How to improve the design scheme

    Resolved
    Part Number: INA303 Other Parts Discussed in Thread: INA138 1、It mainly does DC sampling, the front stage is a sampling resistor, and then detected by INA303, but the common mode voltage of INA303 is a little small, only 36V, the common mode voltage of…
    • Resolved

  • RE: INA303: Is it authorized to set LIMIT1 below LIMIT2

    Hi, I agree my application is quite special, I do need ALERT1 below ALERT2, even if it mean ALERT2 & ALERT1 will be at the low level simultaneously in some cases. However, what I want to be sure is the internal possibility do configure the INA303…
    • Answered

  • INA303: PWM switching noise

    Resolved
    Part Number: INA303 Other Parts Discussed in Thread: INA240 Hello, I have an INA303 sensing the current through an H-bridge, which switches with a PWM of 20 kHz. The problem is that the output of the INA is very perturbated by the switching noise, yielding…
    • Resolved
    • Answered

  • INA303: IC Damage on power up the Board

    Resolved
    Part Number: INA303 Hello, I am using INA303 device in the design for over current protection. We are observing the device getting damage when its powered and the Vs pin is showing short with GND. Below is the schematic for the same, I do not see any…
    • Resolved

  • INA303: Alternative to INA303 with smaller footprint/package

    TI Thinks Resolved
    Part Number: INA303 Other Parts Discussed in Thread: DRV8313 , , INA301 , INA381 Using 4x INA303 together with DRV8313 (basically the TI reference design) for current sensing a BLDC. I need the INA's to be considerably smaller. Please help propose a few…

  • INA303: Max current vs time while breaching the common mode voltage specifications

    TI Thinks Resolved
    Part Number: INA303 We have been using TI's INA303 in one of our applications. In the topology we have implemented, we are concerned that we breach the maximum common mode voltage of the IC. As per the datasheet, we can operate at GND-0.3 V if the…

  • INA303: INA303 SPICE model issue

    TI Thinks Resolved
    Part Number: INA303 Other Parts Discussed in Thread: TINA-TI , the behavior of INA303 in TINA-TI has a problem, i am using a bidirectional current sensing scheme, the LIMIT1 works fine but LIMIT2 is always pulled low. i tried switching between both current…

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